Amplifier for guitar



FIG. 1 is a perspective view of the front, top and right side of an amplifier for a guitar according to a first embodiment showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a perspective view of the front, top and right side of an amplifier for a guitar according to a second embodiment showing my new design;

FIG. 9 is a front view thereof;

FIG. 10 is a rear view thereof;

FIG. 11 is a left side view thereof;

FIG. 12 is a right side view thereof

FIG. 13 is a top plan view thereof; and,

FIG. 14 is a bottom view thereof.

The broken line showing of the amplifier for a guitar is included for the purpose of illustrating portions of the amplifier for a guitar and forms no part of the claimed design. 

The ornamental design for an amplifier for a guitar, as shown and described. 